I read in a Newspaper (in French) that they had renovated a building in an industrial district in the east of the city named Pointe-St-Charles. These articles appeared in newspapers before the announcement that JRM will be in the movie

Here they are (in French). One says they are looking for extras.

 

http://www.journaldequebec.com/2014/05/13/emmerich-fait-appel-aux-montrealais

 

http://www.journaldequebec.com/2014/05/28/le-montage-des-decors-de-stonewall-a-debute

 


I am the master of my destiny - Solal